<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音" />
    </div>
		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li class="search-item border-bottom" 
            v-for="item of list" 
            :key="item.id"
            @click="handleCityClick(item.name)"
        >
          {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="hasNoData">
          没有找到匹配数据
        </li>
			</ul>
		</div>
  </div>
</template>

<script>
import BScroll from 'better-scroll'
import { mapMutations } from 'vuex'
export default {
  name: 'CitySearch',
	props: {
		cities: Object
	},
	data () {
		return {
			keyword: '',
			list: [],
			timer: null
		}
	},
  methods: {
    handleCityClick(city) {
      // this.$store.dispatch('changeCity',city)
      
      this.changeCity(city)
        this.$router.push('/')
      },
      ...mapMutations(['changeCity'])
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  },
	watch: {
		keyword () {
			if(this.timer) {
				clearTimeout(this.timer)
			}
      if(!this.keyword) {
        this.list = []
        return
      }
      else {
        this.timer = setTimeout(() => {
          const result = []
          for ( let i in this.cities) {
            this.cities[i].forEach((value) => {
              if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
                result.push(value)
              }
            })
          }
          this.list = result
        },100)
      }
		}
	},
  mounted () {
    this.scroll = new BScroll(this.$refs.search)
  }
}
</script>

<style lang="stylus" scoped>
  @import '~styles/varibles.styl'
  .search
    height: .72rem
    padding: 0 .1rem
    background: $bgColor
    .search-input
      box-sizing: border-box
      width: 100%
      height: .62rem
      padding: 0 .1rem
      line-height: .62rem
      text-align: center
      border-radius: .06rem
      color: #666
  .search-content
    z-index: 1
    overflow: hidden
    position: absolute
    top: 1.58rem
    left: 0
    right: 0
    bottom: 0
    background: #eee
    .search-item
      line-height: .62rem
      padding-left: .62rem
      background: #fff
      color: #666
</style>
